Mechanical Design
Below are the dimensioned drawings of the parts that made up our controller box. The box has a raised floor and a dropped ceiling in order to conceal the circuits and LED wires, respectively. The area for the user's hands is partitioned to prevent the hands from triggering the wrong sensors.
 
Photo of the assembled box
 
Schematic of the assembled box
 
Schematic of the top plate
 
Schematic of the raised floor with sensor holes
 
Schematic of the fan box